Boating Knowledge Base

Have a sailing question? Access NauticEd’s sailing and boating knowledge base, and gain in-depth answers to your sailing questions. If you’re interested in powerboating, visit our new powerboating blog.

Action by a Give-Way Vessel

The Nav Rule Every vessel which is directed to keep out of the way of another vessel shall...
August 23, 2023/by Grant Headifen
Sailboat engine cooling system diagram showing fluid flow through heat exchanger and pumps.

Diesel Raw-Water System

Raw-water means that the water is straight from outside the boat. It might be seawater - it might be
October 15, 2023/by Grant Headifen
Two sailboats on open sea with an arrow pointing from the red-hulled boat to the blue-hulled boat under a clear sky.

Terms Port – Starboard – Forward – Aft

In discussing sail trim, certain terminologies must be understood and so we are presenting a few basics to get you started
August 4, 2023/by Grant Headifen
Satellite image of hurricane approaching Caribbean islands, highlighting storm path critical for sailing safety.

Weather Predictions

While we have touched on weather concepts in this Module, no one can expect you to be a meteorologist (unless you are one) and do a good enough job at predicting the weather with enough quality to guarantee your safety.
October 13, 2023/by Grant Headifen
Diagram illustrating true wind, apparent wind, and boat speed effects on sail, influencing sailing dynamics.

Sailing Wind Velocity & Direction

The faster the boat sails into the wind, the more the apparent wind speed increases and the more it feels like it is coming from the front of the boat. They say  "The apparent wind is forward of the true wind". This means the apparent wind feels like it comes from a more forward direction than the true wind.
October 19, 2023/by Grant Headifen

Action by a Stand-On Vessel Nav Rule

Strangely enough, the written text for the action of a Stand-On vessel is longer than that of a Give-Way vessel.
August 31, 2023/by Grant Headifen
Diagram of yacht communication and navigation system with satellite, GPS, radar, WiFi, and autopilot integration.

Electronic Communications

Nowadays, gigabytes of data can be sent in a second as a digital signal. It is all a complete Wow!
October 22, 2023/by Grant Headifen
Sailing diagram showing prop walk effect causing boat to veer off desired path due to strong wind and speed factors.

Prop Walk Bests You

There is one situation where you are just going to have to suck it up, admit defeat, and work with the forces of nature.
June 9, 2024/by Grant Headifen
Diesel engine fuel system diagram showing tank, shut-off valve, filter, fuel pump, injectors, and return line.

The Fuel System – Getting Familiar with a Charter Boat

While it is reasonably rare to have a fuel problem on a charter it can certainly happen and you should be prepared to apply the (sometimes simple) solution below.
April 4, 2024/by Grant Headifen
Top view diagram of a sailboat hull showing water flow direction and pressure points for optimized sailing performance.

Rudder Force with Spring Lines

The rudder can be a big help because it can change the direction of the thrust force.
April 29, 2024/by Grant Headifen
Two men discussing sailing techniques on a sailboat, part of NauticEd's Instructional Skipper program.

Learning sailing while on a Yacht Charter Vacation

Learn to sail while on vacation with the Instructional Skipper Program. Gain real-world skills and practical experience in beautiful destinations.
December 15, 2024/by Grant Headifen
Diagram showing Earth's latitude lines from the Equator to 90°N, illustrating the planet's spherical shape and rotation axis.

Latitude and Longitude

The latitude and longitude coordinate system is the key navigational concept for sailing. It is the mariner’s coordinate system.
October 12, 2023/by Grant Headifen
Map showing tanker ship positions and details, including Marida Patea, with color-coded directional arrows.

Risk of Collision when Sailing

The Rule of Risk of Collision is that every vessel shall use all available means appropriate to the prevailing circumstances...
August 26, 2023/by Grant Headifen

Basic Telltale Control continued

Controlling the telltales by making course adjustments - when making the woolies fly by making course adjustments the rule is...
August 14, 2023/by Grant Headifen

Sailing Safety Introduction

Emergencies at sea extend from simple and almost funny episodes to major challenges that are extremely serious.
October 19, 2023/by Grant Headifen
Diagram of a Yanmar marine diesel engine with labeled parts: fuel filter, coolant filler cap, oil dip stick, belt, water pump.

Sailboat Diesel Engine Operation

As noted earlier, diesel engines are sturdy and highly reliable, and operating them today is straightforward.
October 14, 2023/by Grant Headifen
Diagram showing wind direction effects on a sail: trimmed, backwinding, and luffing stages.

Luffing and Backwinding Sails

Luffing is when the sail is flapping in the wind. Back winding happens usually right before luffing occurs.
August 22, 2023/by Grant Headifen
Group enjoying a sailing trip on a yacht, navigating through open sea with two steering wheels and wooden deck.

Good Captainship

Being a good captain on a bareboat charter is a real skill. It is very unlike being a good captain on a military or commercial ship or even a captain in a local yacht race.
April 5, 2024/by Grant Headifen

Typical Sailboat Energy Usage

Here we show the devices and how much energy you would typically use on a sailing boat on a sailing vacation each day.
April 12, 2024/by Grant Headifen

Crew Briefing Video

It is important to know how much experience your crew has before you embark on any sailing adventure. For our boat, we created a video walkaround introduction to the boat covering safety items and also just general items on how we want our boat looked after.
October 15, 2023/by Grant Headifen

Sail Twist Basics

How can the wind direction be different between the top of the mast and the bottom?
August 17, 2023/by Grant Headifen
Satellite image of a swirling hurricane over the Atlantic, approaching the southeastern coast of the USA.

Understanding Weather Systems

Weather is a highly complex natural phenomenon. Globally, it is all connected and operates on a multitude of physical laws.
October 19, 2023/by Grant Headifen
Panoramic view of a serene bay with turquoise waters, anchored sailboats, and a sandy beach, perfect for a sailing adventure.

Getting Familiar with the Charter Boat

Prior to releasing the boat to you, the charter company will give you a reasonably extensive walk through the boat.
April 2, 2024/by Grant Headifen
Aerial view of a sailboat with a wooden deck moored at a dock, floating on calm, dark blue water.

Returning a sailboat to the Slip

Time flies when you are sailing. But sadly, the moment comes when you must return and put your vessel back in its slip.
October 13, 2023/by Grant Headifen

Last updated on December 6th, 2024